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Dynamic In Vivo Imaging Of Molecular And Cellular Events Shaping The Immune Response In Mouse Models And Human Diseases
Funder
National Health and Medical Research Council
Funding Amount
$401,361.00
Summary
We plan to develop the instruments and associated technologies required to directly visualise biological processes as the occur in real-time deep inside living organisms. Thus we will use two-photon microscopy to provide deep tissue imaging of immune cell interactions in mouse models and confocal endomicroscopy to provide molecular imaging of cancer biomarkers in patients with colorectal cancer.
Cytokine Production By Human Dendritic Cells - Is Less More?
Funder
National Health and Medical Research Council
Funding Amount
$378,107.00
Summary
Dendritic cells (DC) are specialist white blood cells responsible for initiating and coordinating immune responses against pathogens and cancer. DC act as sentinels of the immune system and are found throughout the body where they are in constant surveillance for infections or danger signals. Once armed they traffic to the lymph nodes, where they activate T lymphocytes and NK cells, which are then responsible for mounting an attack against the infection or tumour. The complex mechanisms of how d ....Dendritic cells (DC) are specialist white blood cells responsible for initiating and coordinating immune responses against pathogens and cancer. DC act as sentinels of the immune system and are found throughout the body where they are in constant surveillance for infections or danger signals. Once armed they traffic to the lymph nodes, where they activate T lymphocytes and NK cells, which are then responsible for mounting an attack against the infection or tumour. The complex mechanisms of how dendritic cells respond to danger, and how they direct T and NK cells to induce specific immune responses appropriate for a particular infection are poorly understood. Most of our current knowledge of DC has been obtained from mouse studies, and it is believed that secretion of cytokines by dendritic cells play an important role. Human dendritic cells have been difficult to identify, however we have pioneered methods to isolate and characterise them from human tissue. We will therefore investigate the production of cytokines from human DC subsets and the role they play in the induction of immune responses. DC can be instructed in the test tube to recognise a cancer and mount an immune response, and this is a promising new therapy for cancer. Our work will uncover fundamental information about the most potent danger signal, the type of DC and the most important cytokines for inducing immune responses against cancers, and will therefore assist in the development of cancer vaccines.Read moreRead less
Understanding The Mechanism And Significance Of CXCL16-mediated Protection Of Tumour Cells From CTL-induced Apoptosis.
Funder
National Health and Medical Research Council
Funding Amount
$524,520.00
Summary
This research will begin to determine the significance of changes in the amount of a recently-discovered protein on the surface of tumour cells. We have shown that an increase in expression of this protein protects tumour cells from destruction by our immune system's killer T cells. The outcome of this research could lead to a better understanding of how the immune system recognises and kills tumour cells, and ultimately, alternate vaccine strategies for tumours.
This Program Grant has three investigators, Professor Denis Moss, Dr Rajiv Khanna and Dr Scott Burrows, each of whom has collaborated on two previous Program Grants. The group is well known in the area of herpesvirus immunology and have published numerous scientific papers in leading medical journals. This program grant focuses on two human herpesviruses. The first is called Epstein-Barr virus which causes glandular fever and is associated with arange of human cancers. The second virus is human ....This Program Grant has three investigators, Professor Denis Moss, Dr Rajiv Khanna and Dr Scott Burrows, each of whom has collaborated on two previous Program Grants. The group is well known in the area of herpesvirus immunology and have published numerous scientific papers in leading medical journals. This program grant focuses on two human herpesviruses. The first is called Epstein-Barr virus which causes glandular fever and is associated with arange of human cancers. The second virus is human cytomegalovirus which can cause birth defects and problems in transplant patients. In this program we are investigating how the body�s immune system controls these viruses to exploit this information to develop new treatments.Read moreRead less
Molecular And Functional Charcterization Of A Novel Population Of Foxp3+ Regulatory T Cells
Funder
National Health and Medical Research Council
Funding Amount
$394,274.00
Summary
Regulatory T cells (Tregs) are essential for the prevention of autoimmunity and death. We have identified a new population of effector or ïactiveÍ Tregs, and identified some of the proteins that are required for these cells to function. We now aim to examine the development of these cells in detail, illuminate their precise function, their distribution and mode of action. This has potentially huge implications in treatment and diagnosis of autoimmunity, cancer or transplantation.
Protective memory T cell immune responses defend our body against pathogens by the rapid induction of killer T cells. This protects us from severe or perhaps even fatal disease. Our work will provide insights to how the body makes these potent ‘footsoldiers’. This work will have important implications for identifying how these immune cells can be manipulated to prevent and treat pathogenic and autoimmune disease and for optimising approaches to vaccination.
I am a cellular immunologist with expertise in antigen processing-presentation, CTL determinant selection and immunodominance, T cell differentiation and, cancer immunotherapeutic trials and cancer vaccine development.
Identification Of E-protein Complexes Controlling Natural Killer Cell Fate And Tumour Immunity
Funder
National Health and Medical Research Council
Funding Amount
$683,742.00
Summary
Diverse immune cell types are essential for effective broad-spectrum immunity. Master regulators control this diversity and have a well-characterized role in the development of antigen-specific immunity. In contrast, we lack mechanistic understanding of how master regulators control antigen-unspecific, innate immunity. Understanding the mechanism behind this will explain how diverse white blood cells can develop and reveal strategies to skew their development to improve immunity in humans.
Roles Of ID2 In Regulating Critical Innate And Adaptive Arms Of The Immune Response
Funder
National Health and Medical Research Council
Funding Amount
$597,418.00
Summary
The immune system protects us from a wide range of pathogens and foreign invaders. Natural killer (NK) cells and T cells are an critical component of the immune system due to their ability to detect and kill virally infected and malignant cells. Our work will endeavor to understand the molecular steps essential for these cells to develop and become armed to ensure immune protection.